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Ubuntu 16.04 LTS: 4058-1 Critical: Bash Execution Escape Issue

ubuntu
Calendar Grey July 15, 2019
Dist Ubuntu Esm H88
Mitigating the Bash security flaw on Ubuntu 16.04 LTS to avert potential command execution risks.
A system hardening measure could be bypassed.

Summary

A system hardening measure could be bypassed.

Software Description:

- bash: GNU Bourne Again SHell

Details:

It was discovered that Bash incorrectly handled the restricted shell. An

attacker could possibly use this issue to escape restrictions and execute

any command.

Topics%20covered

Topics Covered

security advisory system hardening Ubuntu bash execution escape

Update Instructions

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 16.04 LTS:
  bash                            4.3-14ubuntu1.4

In general, a standard system update will make all the necessary changes.

References

https://ubuntu.com/security/notices/USN-4058-1

CVE-2019-9924

Severity
critical
Lowest
Low
Medium
High
Critical

July 15, 2019

Topics%20covered

Topics Covered

security advisory system hardening Ubuntu bash execution escape

Package Information

https://launchpad.net/ubuntu/+source/bash/4.3-14ubuntu1.4

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